计算(log5^3+log25^3)(log9^5+log27^5)
问题描述:
计算(log5^3+log25^3)(log9^5+log27^5)
答
(log5^3+log25^3)(log9^5+log27^5)
=(3log5+3log5^2)(5log3^2+5log3^3)
=(9log5)*(25log3)
=225log15